5 Use and Operation
68
NO.
LCD
fault
symbol
Buzzer status
Meaning
bypass phase sequence is normal, if the wiring
way of bypass matches the system mode setting.
23
BAT Err.
Slow beep(alarm
once about every
2.0s)
Battery has been pressure protection, charging
fuse failure, over-pressure alarm fault, please
check the battery status is normal.
Urgent
beep(alarm once
about every 0.2s)
Battery wiring fault, charging short, under-voltage
protection, under-voltage warning problem,
please check the battery wiring and the current
state is normal.
No
buzzer
warning
The battery charging temperature is too high.
24
PFC Err.
Long beep
UPS rectifier fault.
25
INV Err.
Long beep
UPS inverter failure.
The buzzer alarm in the table above describes the phenomenon of UPS boot state and no beep ban
when the buzzer is not set, the shutdown state or some abnormal phenomena when setting the buzzer
ban will prompt the information in the LCD, but the buzzer alarm will not be issued.
Summary of Contents for IST9
Page 1: ...l un I Jet _________ __ AEC IST9 1 0 20 https www uni jet com catalog ibp on line ibp aec ist9...
Page 2: ...UPS IST9 10 20 kVA User Manual...
Page 3: ......
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Page 52: ...3 Installation 43 Figure3 29 Diagram of 33 mode parallel system wiring of 10kVA 20kVA UPS...
Page 54: ...3 Installation 45 Figure3 31 Diagram of 33 mode parallel system wiring of 30kVA 40kVA UPS...
Page 82: ......